retrieve the 404 page title

Hi, i use all in one seo pack for my blog. The plugin puts the requested words as page title and i see it on my browsers title area. What i want to do is putting this title somewhere in the loop (in 404.php) with a php code. I’ve tried it with: <?php the_title(); ?> , <?php get_the_title(); ?> , <?php wp_title(); ?> with also adding “echo” but no success.